Pretty much as the title states really. I was looking to fit a new PSU and g1 gaming gtx970, but having fitted the psu and trying to boot the computer, it fails to do anything other than a very brief illumination of a case fan led, shows what looks like a red 'j' on the error code lcd, then does nothing more. I've bridged the fan connection on the psu, and solely ran a case fan from it, and that works fine, as soon as it's connected to the motherboard however it gives off a loud solenoid click with the quick led flash as above.
Any thoughts?